From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) by sourceware.org (Postfix) with ESMTPS id 9D0CE3858C54; Thu, 1 Dec 2022 01:36:27 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 9D0CE3858C54 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=linux.ibm.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=linux.ibm.com Received: from pps.filterd (m0187473.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2B11VlOg021329; Thu, 1 Dec 2022 01:36:26 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id; s=pp1; bh=kGA4zdel3v+2cwI39B2SPsy+b90dvRuUYtRNRT6j4GQ=; b=OZFTkZ37Lf7pvfVQoSL30Bk0fWbcS4AeazXJPPEhKt+cMwlLFld0x//aY7BjVqnModsN +i7i2WOKwv1QCMhW5RCDpAn6i2ZW9lJ3tooIRGrlgdI7nKscwXmXhrqg/JQbMeW5yI/c eMuYH3G3Sdr5G3ygo5ybduF+yPMJcO992I0jANoEdntkgDp9+cOEKHJ055iKzOMubHqY Fq1zO0JZkR50VPjVGg2V8tHmRGw0tnUaObhhqarMHzjD+2hQE9hRjMsjFVe9/GIKXtLW n9u7aJWVmSjKm38B4gqei+kFso1sMHb+iAyBTtinuLIk416fAXcI3Qb5rvuKdd0phE4a 1g== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3m6jpfr333-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Dec 2022 01:36:26 +0000 Received: from m0187473.ppops.net (m0187473.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 2B11WBlN022592; Thu, 1 Dec 2022 01:36:25 GMT Received: from ppma02fra.de.ibm.com (47.49.7a9f.ip4.static.sl-reverse.com [159.122.73.71]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3m6jpfr31n-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Dec 2022 01:36:25 +0000 Received: from pps.filterd (ppma02fra.de.ibm.com [127.0.0.1]) by ppma02fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 2B11Zlfb010390; Thu, 1 Dec 2022 01:36:23 GMT Received: from b06cxnps4075.portsmouth.uk.ibm.com (d06relay12.portsmouth.uk.ibm.com [9.149.109.197]) by ppma02fra.de.ibm.com with ESMTP id 3m3ae94ssq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 01 Dec 2022 01:36:23 +0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 2B11aKbs26608326 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 1 Dec 2022 01:36:20 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 98D6EA405C; Thu, 1 Dec 2022 01:36:20 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C522AA4054; Thu, 1 Dec 2022 01:36:19 +0000 (GMT) Received: from pike.rch.stglabs.ibm.com (unknown [9.5.12.127]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Thu, 1 Dec 2022 01:36:19 +0000 (GMT) From: Jiufu Guo To: gcc-patches@gcc.gnu.org Cc: segher@kernel.crashing.org, dje.gcc@gmail.com, linkw@gcc.gnu.org, guojiufu@linux.ibm.com Subject: [PATCH 1/3]rs6000: NFC use more readable pattern to clean high 32 bits Date: Thu, 1 Dec 2022 09:36:17 +0800 Message-Id: <20221201013619.196004-1-guojiufu@linux.ibm.com> X-Mailer: git-send-email 2.17.1 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: t_KuLnU4IKTqOueUCdcmc0dxvmjqwAfZ X-Proofpoint-GUID: nilqQd3CUKkKK_DJOQpEx8-vylEyQFNi X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-30_04,2022-11-30_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 impostorscore=0 lowpriorityscore=0 spamscore=0 priorityscore=1501 suspectscore=0 malwarescore=0 clxscore=1015 mlxscore=0 bulkscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2212010007 X-Spam-Status: No, score=-11.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,GIT_PATCH_0,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS,TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Hi, This patch is just using a more readable pattern for "rldicl x,x,0,32" to clean high 32bits. Old pattern looks like: r118:DI=zero_extend(r120:DI#0) new pattern looks like: r118:DI=r120:DI&0xffffffff Bootstrap and regtest pass on ppc64{,le}. Is this ok for trunk? BR, Jeff (Jiufu) gcc/ChangeLog: * config/rs6000/rs6000.cc (rs6000_emit_set_long_const): Update zero_extend(reg:DI#0) to reg:DI&0xffffffff. --- gcc/config/rs6000/rs6000.cc | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/gcc/config/rs6000/rs6000.cc b/gcc/config/rs6000/rs6000.cc index eb7ad5e954f..5efe9b22d8b 100644 --- a/gcc/config/rs6000/rs6000.cc +++ b/gcc/config/rs6000/rs6000.cc @@ -10267,10 +10267,7 @@ rs6000_emit_set_long_const (rtx dest, HOST_WIDE_INT c) emit_move_insn (copy_rtx (temp), gen_rtx_IOR (DImode, copy_rtx (temp), GEN_INT (ud1))); - emit_move_insn (dest, - gen_rtx_ZERO_EXTEND (DImode, - gen_lowpart (SImode, - copy_rtx (temp)))); + emit_move_insn (dest, gen_rtx_AND (DImode, temp, GEN_INT (0xffffffff))); } else if (ud1 == ud3 && ud2 == ud4) { -- 2.17.1